R1100 Datasheet, PDF (3/5 Pages) RDC Semiconductor – 16 Bit RISC Micro Processor

RDC®
RISC DSP Communication
2. Block Diagram
CLKOUTA
INT2/INTA0
INT1/SELECT
INT3/INTA1/IRQ
CLKOUTB
INT4
INT0 NMI
X1
X2
PLL
VCC
Clock & Power
GND
Management
Interrupt
Control Unit
RST
R1100
16 Bit RISC Micro Processor
TMROUT0 TMROUT1
TMRIN0 TMRIN1
Timer Control
Unit
DRQ0
DRQ1
DMA
Unit
LCS/ONCE0
MCS3/RFSH
MCS2-MCS0
UCS/ONCE1
PCS3-PCS0
PCS5/A1
PCS6/A2
Chip
Select
Unit
PSRAM
Control
Unit
ARDY
SRDY
S2~S0
DT/R
DEN
HOLD
HLDA
S6/CLKDIV2
UZI
Refresh
Control
Unit
Bus
Interface
Unit
Instruction
Queue (64bits)
Instruction
Decoder
Control Signal
Register
File
General,
Segment,
Eflag Register
ALU
(Special,
Logic,
Adder,
BSF)
A19~A0
AD15~AD0
ALE
RD
WHB
WLB
WR
BHE/ADEN
Micro
ROM
EA / LA
Address
PIO
Unit
Asynchro-
nous Serial
TXD
Port
RXD
Execution
Unit
Synchronous
Serial Interface
SCLK
SDATA
SDEN0 SDEN1
Specifications subject to change without notice, contact your sales representatives for the most update information.
RDC Confidential
Page 3 of 5
REV 1.0 May. 04 2007